Craftsman 921.1521 Air Compressor User Manual


 
Improper installation of the grounding plug will result in a
risk of electric shock. If repair or replacement of the cord
or plug is necessary, do not connect the grounding wire to
either flat blade terminal. The wire with insulation having
an outer surface that is green with or without yellow
stripes is the grounding wire. Check with a qualified
electrician or serviceman if the grounding instructions are
not completely understood, or if in doubt as to whether the
product is properly grounded. Do not modify the plug
provided; if it will not fit the outlet, have the proper outlet
installed by a qualified electrician.
This product is for use on a circuit having a nominal rating
of 120 volts and is factory-equipped with a specific electric
cord and plug to permit connection to a proper electric
circuit. Make sure that the product is connected to an outlet
having the same configuration as the plug. No adapter
should be used with this product. If the product must be
reconnected for use on a different type of electric circuit,
qualified service personnel should make the reconnection.
Extension Cords
Use only a 3-wire extension cord that has a 3-blade
grounding plug, and a 3-slot receptacle that will accept
the plug on the product. Make sure your extension cord is
in good condition. When using an extension cord, be sure
to use one heavy enough to carry the current your prod-
uct will draw. Cords must not exceed 25 feet and No. 12
AWG size must be used. An undersized cord will cause a
drop in line voltage resulting in loss of power and over-
heating.
Break In Procedures
No break in procedure is required by the user. This
product is factory tested to ensure proper operation and
performance.
Operating Procedures
Daily Start-Up Procedures
1. Set the Auto-On/Off lever to the Off position.
2. Check the air compressor visually for any damage or
obstruction.
3. Close the drain valve,
4. Check the oil level of the pump.
5. Connect the air hose to the quick connect socket on
the regulator assembly by inserting the quick connect
plug on the air hose into the quick connect socket. The
quick connect socket collar will snap forward and lock
the plug into place providing an air tight seal between
the socket and plug. To leiease tile ah ilu_u push th_
collar back on the quick connect socket.
6. Plug the power cord into the proper receptacle.
7. Turn the Auto-On/Off lever to the On-Auto position and
the compressor will start and build air pressure in the
tank to cut-out pressure and then shut off automatically.
8. Adjust the regulator to a PSI setting that is needed for
your application and be sure it is within the safety
standards required to perform the task. If using a
pneumatic tool, the manufacturer should have recom-
mendations in the manual for that particular tool on
operating PSI settings.
9. The air compressor is now ready for use. The following
inflation and cleaning accessories packaged with this
unit should only be operated at maximum pressure of
20-30 PSI: blow gun, tapered nozzle, inflation needles,
wire brush adapter, blow gun adapter.
Daily Shut-Down Procedures
1. Set the Auto-On/Off lever to the Off position.
2. Unplug the power cord from the receptacle.
3. Set the outlet pressure to zero on the regulator.
4. Remove any air tools or accessories. When draining
the tank, always use ear and eye protection. Drain the
tank in a suitable location; condensation will be present
in most cases of draining.
5. Open the drain valve allowing air to bleed from the
tank. After all of the air has bled from the tank, close
the drain valve to prevent debris buildup in the valve.
When draining the tank, always use ear and eye protection.
Drain the tank in a suitable location; condensation will be
present in most cases of draining.
Water that remains in the tank during storage will corrode
and weaken the air tank which could cause the tank to
rupture. To avoid serious injury, be sure to drain the tank
after each use or daily.